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rated 0 times [ 5] [ 0] / answers: 1 / hits: 10240 / 2 Years ago, fri, may 6, 2022, 6:05:10

Is there a way to substitute aliases such that it is appended or prepended to an existing command in the shell?

For example, defining the alias:

alias execloc='/home/user/'

Prepending this to a command in the bash terminal:

cd exeloc/temp/somefolder

Can something like this be done, or is there a way to do it?

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answered 2 Years ago ainlyyor · Accepted Answer

You can't do it like this because /home/user/ is not a command. It't more like a static string.

From man bash (somewhere at line 1984):

Aliases allow a string to be substituted for a word when it is used as
the first word of a simple command.

In your case, execloc will never be the first word of a simple command.

But, instead to define execloc as an alias, you can define it as an environment variable:

export execloc='/home/user/'

And then you can use it everywhere you want as follow:

cd $exeloc/temp/somefolder